trebling

1. gerundparticiplepresentpresent participle and gerund of treble

plural treblings

1. An act of multiplying by three.

   1 more example

   When I mentioned Aristote's claims to colleagues, they confirmed that foreign mining companies were suspected to use accounting loopholes to minimize their tax payments to the Congolese government. This was one of the reasons cited by the Congolese government for the trebling of tax rates on cobalt and the implementation of the supertax in 2018.

   2023, Siddharth Kara, “We Work in Our Graves”, in Cobalt Red, St. Martin's Press, page 172

2. A high-pitched voice or sound.

   the treblings of songbirds